Building real things, in public
Notes from DEMHA FUTURE — how we build apps fast with AI, and what we learn.
QR Code Generator — free online tool
Make a QR code for WiFi, contacts, a phone number or a map pin and download it as a PNG, free and online, right in your browser with nothing uploaded.
Date Difference Calculator — free online
Count the days, weeks and months between two dates for free, right in your browser. Nothing is uploaded and nothing is saved.
Days of Supply Calculator — free online
Find out how many days of stock you have left and when you'll run out. Free online, right in your browser, nothing uploaded.
Days Until Calculator — free online
Count the days, working days and weeks until any date for free, right in your browser. Nothing is uploaded.
Debit Note Generator — free online tool
Make a professional PDF debit note online, right in your browser. Free, no sign-up, and nothing you type is ever uploaded.
Debt Payoff Calculator — free online
See how fast you can be debt-free with the snowball or avalanche method. Free and online, right in your browser, with nothing uploaded.
Debt-to-Equity Calculator — free online
Find your debt-to-equity ratio and debt as a share of capital online, right in your browser. Nothing you type is uploaded.
Weighted Decision Matrix — free online tool
Compare your options against the things that matter and see a clear winner, free and online — right in your browser, nothing uploaded.
Delimited Converter — free online tool
Convert between CSV, TSV, pipe and semicolon files, or turn fixed-width columns into clean CSV — free and online, right in your browser, nothing uploaded.
Delivery Note Generator — free online
Make a clean PDF delivery note or packing slip online, right in your browser. List items and quantities, no prices, nothing uploaded.
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